Add owners to custom test infra (#72080)
Summary:
Followup from meeting today where it is not clear who owned these processes.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/72080
Reviewed By: malfet
Differential Revision: D33898729
Pulled By: janeyx99
fbshipit-source-id: 79d0e8210b8a6b9876eb50af448e6967a88d38bf
(cherry picked from commit 57cd82ef02c8192154d644af317a51d5f6d2f9e8)
